SUPERMEI FD is a high concentration glucoamylase produced from strains of Aspergillus niger through submerged fermentation, extraction and refining processes. It has a high conversion rate from starchy substrates to fermentable sugars. It can hydrolyze α-D-1, 4 glucosidic bonds from the non-reducing end of starch one after another. It can also hydrolyze the α-D-1, 6 glucoside branch bonds of starch and cleaves the α-1, 3 bonds to produce glucose.

With its robust glucoamylase activity, SUPERMEI FD enables higher alcohol yields, faster fermentation and less starch residuals in for the production of alcohol and brewing.

Product Characteristics

Declared Enzyme:

Glucoamylase

Systematic Name:

EC3.2.1.3, 1,4-alpha-D-glucan glucohydrolase

Appearance:

Yellow brown brown liquid

Activity:

400,000 U/ml (minimum)

Product pH:

3.0 to 5.0

Specific gravity:

≤1.20 g/ml

Effect of pH

SUPERMEI FD works at pH from 3.0 to 5.5 with its optimal pH from 3.5 to 4.5. See Figure 1.

Effect of Temperature

SUPERMEI FD works at temperatures from 30 to 65°C with its optimal temperature range from 55 to 60°C. See Figure 2.

Application and Benefits

SUPERMEI FD is capable to saccharify liquified mash from various sources including corn, milo, barley, wheat, rice, potatoes and tapioca. The resultant glucose product is fermented by yeast or another appropriate microorganism to yield alcohol.

SUPERMEI FD has been designed to ensure the following benefits:

1) Increased fermentation rate

2) Increased alcohol yields

3) Efficient starch/dextrin degradation

4) Less starch residuals in distiller’s grains

5) Improved performance in pre-saccharification processes

For ground-grain processing plants using simultaneous saccharification fermentation (SSF), SUPERMEI FD may be directly added into the fermenter. For ground-grain dry mill plants and for wet mill plants using a separate pre-saccharification step prior to fermentation, SUPERMEI FD may be added to the cooling mash or liquefied starch when the temperature reaches 55 to 60°C. Temperatures above 65°Ccan result in loss of activity.

Dosage Guidelines

In general, SUPERMEI FD is added at a dosage rate of 0.26 to 0.34kg/TDS. The exact enzyme dosage level is dependent on the type of raw materials, processing temperatures, reaction time and pH during the actual saccharification and fermentation process and the desired results in the individual alcohol plants.

² Typical shelf-life is six months if it is stored below25°Cin its original packaging, sealed and unopened, protected from direct sunlight. Its shelf-life will be eighteen months provided that this product is stored properly at 0∼10°C. Prolonged storage and/or adverse conditions such as higher temperatures may lead to a higher dosage requirement, therefore should be avoided.

Safe Handling of Enzymes

Inhalation of enzyme dust and mists should be avoided. In case of contact with eyes or skin, promptly rinse with water for at least 15 minutes. For detailed handling information, please refer to the Material Safety Data Sheet of this product.